Improvement in casting car-wheels



J K. MORANGE '&'N. B. MORANGE.

Improvement in Casting Car-Wheels N0.- 114,958. Patented May16,187|.

i/n' .9 es J; #2; fnzwnwf EMZJX %Mz new site that can JA'MES'K. MORANGE AND'NAPOLEON' B. MoRANcnoF PITTSBURG; Y PENNSYLVANIA.

Letters Patent No.'114,958, dated May 16,1871.

IMPROVEMENT IN CASTING CAR-WHEELS.

The Schedule referred'to in these Letters 'Patent and. maldngpaxt of the iame.

To all whom tt may concern Be it knownthat we, James K. .MORANGE and NAPOLEON B. MORANGE,'b0tl10f the cityof Pittsburg, in the county of Alleghenyand'State of 'Peu n' sylvania, have invented a new and useful Improvement in Constructing Gar-Wheels, the same being an improvement upon the method of constructing-cars wheels for whichLetters Patent were granted to Gornelins Kingsland, December 17 1867, and numbered 72,405; and we do'hereby'declare that the following is a full,"clear, and exact description of our improvement.

The nature of our invention consists in constructing a wheel for railways with a recess or recesses made in its periphery or tread at a point or points which is or are between the flange and outer edge of the wheel, substantially as hereinafter described;

To enable others skilled in the art to make and use our invention, we will proceed to describe morefully its construction.

In theaccompanying drawing which forms part of our specification- Figure 1 is an edge or side elevation of an ordinary wheel for railway cars, and represents the recess made in its periphery or tread.

Figure 2 is a transverse section of the wheel when out through at liney of fig. l?

Eigure 3 is a vertical section of the wheelwhen cut through at liney of fig. 1.

In the accompanying drawing A represents the disk of the wheel;

B, its tread; and

, 0, its flange; all of which are of the ordinary form.

In the process of casting we form in the tread or periphery B of the wheel one or more recesses, which is or are arranged at a point which is between the flange (land the outer edge or face of the wheel, so

It will be observed by reference to fig. 3 that the recess 'orcavity O on-two of its sides is slightly in-.

clined inward toward the center of thebottom of the recess, and in each of these walls is a concavity, all of which is clearly shown in fig. 3. The form of the other two walls of the recess is clearly shown in fig. 2. The recesses O are made in the tread of the wheel-for the purpose of compensating for the difference between the contraction of themetal in the chilled tread B and the disk A, which is not chilled in the process of casting.

The object of making the recesses 'in the tread of the wheel and the desirable results obtained by thus inbefore described, consist in walling in on all sides the metal or alloy used for filling up the recesses, which filling process is'set forth in the patent granted to Gornelius Kingsland and in the patent grantcdtto 'us September 6, 1870, No. 107,083.

By making the recesses C in the form hereiubefore described the filling placed .in'the recesses will have a tendency to become more compact, and cannot be displaced by the action of the wheels upon the rails, and

' will also prevent the crushing in of the walls of the recesses.

What we claim is A car-wheel for railways, with a recess 01; recesses made inits tread at a point or points which is or are betwceuthe flange and outer edge of the wheel, sub.- stantially as and for the purpose set forth.

J. K. Momlven.

N. B. MORAN GE.

Witnesses Jams J. JOHNSTON, A. O. Jonus'ron. 

